A good resignation letter does three things
It communicates the decision clearly, sets a precise date, and keeps the professional door open. That's it. This is not the moment for grievances, passive-aggressive notes, or long declarations. The shorter and more professional, the better — you'll be working with these people for a few more weeks, and many will reach out in your future.
Recommended structure
- Date and recipient. Date at the top; recipient (your direct manager) below.
- Opening. "Please accept this letter as formal notice of my resignation from the position of [title]."
- Effective date. "My last day of work will be [date]." (Honoring the notice period.)
- Gratitude. "I appreciate the opportunity and the experience gained."
- Transition commitment. "I will do everything I can to ensure a smooth transition."
- Close and signature. "Sincerely, [Name]"
About the notice period
In the US, two weeks (10 business days) is the professional standard for most roles — not legally required at-will, but breaking it damages references. Senior or contracted positions may have 30-day or longer notice clauses. In the UK and EU, notice is statutory and depends on tenure and contract. Always check your employment agreement before setting the last day.
Reason: when to share, when not
Legally never required. In practice, a neutral reason softens the conversation and closes follow-up questions: "to take on a new professional opportunity" or "for personal reasons". What you should NOT write: critiques of the company, comparisons with other jobs, conflicts with coworkers, or the name of your new employer. Save that for the conversation, with discretion.
Common mistakes
- Resigning by chat. A formal letter protects both parties from future disputes.
- Long letters. More than one page goes unread. 4-6 short paragraphs is ideal.
- Emotional tone. Even if you're leaving on bad terms, the letter must sound professional. Save emotion for your journal.
- Shortening notice without agreement. Leaving early without consent can affect references and final pay. Negotiate in writing.
- Signing without keeping a copy. Always keep a signed copy acknowledged by HR or your manager.
After the letter
Once delivered, formally request acknowledgment of receipt. Ask early for HR documents: final pay, COBRA info, retirement rollover packets. And if they offer a counter-offer, think it through with a cool head — research suggests roughly 70% of people who accept counter-offers leave within 12 months anyway.